Absolute nonsense! The existence of the police or their ad is not the reason they went searching for young hookers. How about this? If they never went searching for underage hookers, nothing would have happened to them regardless of what the police did.
You don’t know what would have happened.
No, but we know what did happen. OK, innocent until found guilty, but if they are guilty, it's because of their own actions, not because of anything the police did.
There is no such website as “young hookers R us”.
These were ads placed in classifieds and dating sites where someone looking for other things can also see them.
Just like using a police woman as bait in the street to convince men to pay her. If she did not exist, nobody would be talking to her. They are making a prediction by creating a fantasy situation they assume proves what someone would have done later.
This is all very psuedo-scientific and legally dubious